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Chapter 3
Hypertension
59
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Professional
03/03/2013

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Cards

Term
What is defined as hypertension?
Definition
140/90
Term
Are symptoms always seen with hypertension?
Definition
no
Term
What is prehypertension?
Definition
(120-139)/(80-89)
Term
What is hypertension in children and adolescents defined as?
Definition
elevated blood pressure that persists on repeated measurement at the 95th percentile or greater for age, height, and gender
Term
Who can make the diagnosis of hypertension and prescribe treatment?
Definition
physician
Term
What is the most common primary diagnosis in america?
Definition
hypertension
Term
How much of the population has hypertension?
Definition
1/4th
Term
Have the rates of hypertension risen or fell?
Definition
did fall but rose again in the 90's
Term
What is diagnosis and treatment based off of?
Definition
usbed to just be based off of diastolic, but based off of systolic now too
Term
Does systolic or diastolic increase with age?
Definition
systolic rises throughout life, diastolic increases until about 50
Term
What race has the highest prevalence?
Definition
African americans
Term
What is primary hypertension caused by?
Definition
no known cause(90% of cases)
Term
What can play an important role in the severity and progression of hypertension?
Definition
lifestyle
Term
What is the basic underlying defect in primary hypertension?
Definition
a failure in the regulation of vascular resistance
Term
What is the underlying problem in systolic hypertension?
Definition
the underlying problem is one of central arterial stiffness and loss of elasticity
Term
What is blood pressure measured with?
Definition
sphygmomanometer
Term
Are there always symptoms seen with hypertension?
Definition
no, sometimes the only symptom is the actual high blood pressure reading
Term
What is systolic pressure?
Definition
Pressure at the peak of ventricular contraction
Term
What is diastolic pressure?
Definition
represents the total resting resistance in the arterial system after passage of the pulsating force produced by the contraction of the left ventricle
Term
What is the difference between the systolic and diastolic pressure called?
Definition
the pulse pressure
Term
What is the Mean arterial pressure?
Definition
the sum of the diastolic pressure plus one-third the pulse pressure
Term
Before 50 hypertension is defined as..
Definition
an elevation in systolic AND diastolic
Term
Who is isolated systolic pressure found in?
Definition
most common form in people older than 50, rarely found in young adults
Term
What is isolated diastolic pressure a risk factor for?
Definition
cardiovascular disease
Term
What may be an early indication of hypertension?
Definition
fundoscope examination of the retina
Term
When symptoms are seen what are they?
Definition
headache, tinnitus, and dizziness
Term
What are late signs and symptoms related to?
Definition
involvement of various target organs(kidney, brain, heart, eye)
Term
What is Malignant hypertension?
Definition
a medical emergency and requires immediate intervention
Term
What is Hypertensive encephalopathy characterized by?
Definition
-headache
-irritability,
-alterations in consciousness
-signs of central nervous system (CNS) dysfunction
-enlargement of the left ventricle
Term
What lab tests should patients with hypertension be regularly screened with?
Definition
-12-lead electrocardiogram
-Urinalysis
-Blood glucose
-Hematocrit
-A serum potassium, creatinine, calcium, and lipid profile
Term
What is the classification and diagnosis of blood pressure based on?
Definition
average of 2 or more readings while the patient is seated in two different visits
Term
What is the most common method of taking blood pressure?
Definition
auscultatory method (the one we use)
Term
How are patients with prehytension treated?
Definition
generally not with medication, but with lifestyle changes
Term
What is the goal of the treatment of hypertension?
Definition
to have a blood pressure less than 140/90 (in patient with kidney disese of diabetes it should be less than 130/80)
Term
What is the common ddrug to treat hypertension?
Definition
Thiazide diuretics are most often the first drugs of choice, given either alone or in combination with ACEIs, ARBs, BBs, or CCBs, depending on the degree of elevation of blood pressure
Term
What is the blood pressure where people may need emergency treatment?
Definition
180/120, require it to go down in 1 hour, go to ICU
Term
What is the primary concern of dental management of a person with hypertension?
Definition
during the course of treatment, a sudden, acute elevation in blood pressure might occur, potentially leading to a serious outcome, such as stroke or MI
Term
According to The American College of Cardiology and the American Heart Association practice guidelines, the determination of risk includes evaluation of which three factors?
Definition
-The risk imposed by the patient’s cardiovascular disease
-The risk imposed by the surgery or procedure
-The risk imposed by the functional reserve or capacity of the patient
Term
What is uncontrolled blood pressure defined as? What is it considered?
Definition
>180/110, considered minor risk condition
Term
What is high risk? Intermediate? Low?
Definition

High= >5% risk

Intermediate= 1%-5% risk 

Low=<1% risk

Term
What is risk greatest with?
Definition
-vascular or emergency surgery -prolonged procedures
-procedures associated with excessive blood loss and general anesthesia
Term
Intermediate risk?
Definition
Head and neck surgery,which may include major oral and maxillofacial procedures and extensive periodontal procedures
Term
Low risk?
Definition
Superficial surgical procedures, which include minor oral and periodontal surgery and nonsurgical dental procedures
Term
What is the MET associated with risk?
Definition
<4 met is considered bad
Term
What is 4 MET equal to?
Definition
climbing a flight of stairs
Term
Patients with blood pressures less than 180/110 mm Hg...
Definition
can undergo any necessary dental treatment, both surgical and nonsurgical, with very little risk of an adverse outcome
Term
For patients found to have asymptomatic blood pressure of ≥180/110 mm Hg (uncontrolled hypertension)...
Definition
elective dental care should be deferred; physician referral for evaluation and treatment within 1 week is indicated
Term
What are some problems seen in people with uncontrolled hypertension that may neccessitate dental treatment?
Definition
pain, infection, or bleeding(patient should be managed with physician)
Term
WHat lessen the chances of endogenous release of catecholamines during the dental visitlessen the chances of endogenous release of catecholamines during the dental visit
Definition
stress reduction techniques
Term
How can anxiety be managed?
Definition
with a benzodiazepine such as triazolam (Halcion), taken 1 hour before the start of the dental appointment
Term
What is an excellent intraoperative anxiolytic for use in patients with hypertension?
Definition
nitrous oxide mixed with oxygen
Term
During treatment of a patient with upper-level stage 2 hypertension, it may be advisable to...
Definition
leave the blood pressure cuff on throughout treatment, if it rises above 179/109 then terminate treatment
Term
What is something we need to consider for the chair position of hypertensive patients?
Definition
orthostatic hypertension
Term
Who is anesthesia generally recommended for?
Definition
-ASA I (status of a healthy, normal person)
--or--
-ASA II (presence of mild to moderate systemic disease)
Term
Can epinephrine be used on hypertensive patients?
Definition
yes(2 cartilages, 1:100,000)
Term
What medication should be avoided in hypertensive patients?
Definition
Levonordefrin
Term
What can effect the efficacy of anti-hypentisive drugs?
Definition
NSAID's
Term
Who needs a med con?
Definition
180/110 requires med con before treatment, 140/90 should go see doctor but don't require med con before we see them
Term
What are some oral signs of hyertension?
Definition
-excessive bleeding
-dry mouth(meds)
-lichnoid drug reaction
-slow healing
-gingivl overgrowth(CCblockers)
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